Short answer
The cited guidance does not establish a fixed “before,” “after,” or “instead” position for Romanisation in a passport name. The passport-specific check is whether the name in the application matches the name on the relevant UK or overseas supporting documents. The sources do not say that Romanisation must be placed in a particular position or replace the name in its original script.
UNGEGN’s geographical-names guidance discusses “a single scientifically based romanization system for each script or language.” That is guidance about how names are represented, not a passport-field format. It cannot by itself determine the treatment of a personal name in a passport.
HM Passport Office guidance gives the separate passport test: “The name on a customer’s passport application must match the name on their UK or overseas supporting documents.”
How to check it
- Start with the supporting document. Use the name exactly as it appears there, including the spelling and the order of the name elements. If a Roman-letter version is shown, use it as part of the comparison.
- Compare the complete application name. The relevant issue is whether the application name matches the supporting-document name, not whether Romanisation appears in a more convenient position.
- Keep the two questions separate. The UNGEGN reference concerns a romanisation system for a script or language. The HM Passport Office reference concerns matching a passport application name with supporting documents. Neither cited source supplies a universal rule for combining original-script and Romanised forms.
What the applicant must still confirm
The cited guidance does not specify:
- whether a particular application should contain the original-script name, the Romanised name, or both;
- which form should come first if both are requested; or
- how differences in spelling, spacing, punctuation, or script should be handled for that application.
Those points require confirmation from the passport authority handling the application. Without that confirmation, the available material supports a name-matching check, but not a universal instruction to place Romanisation before, after, or instead of the rest of the name.